Reviews of iStress: AI Stress Monitor

By: 小姣王 App

List of user reviews and ratings for iStress: AI Stress Monitor

Total ratings

4.70 (Rating count: 390)

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Review summary

Users praise iStress for real-time HRV stress monitoring, ease of use, helpful mindfulness reminders, and solid watch integration. The app provides valuable insights into stress and HRV and motivates users to take breaks. However, several recurring issues limit its value: inconsistent data between the watch and iPhone, occasional instability and freezes in analytics, real-time features restricted to paid plans, and a sense that the pricing and upgrades can feel restrictive. Overall, it works well for many but reliability and pricing friction remain common concerns.

Pros

Real-time HRV stress level monitoring and alerts
User-friendly and easy-to-use interface
Helpful reminders and guided breathing to manage stress
Provides valuable HRV/stress insights and progress tracking
Strong watch integration and cross-device compatibility

Cons

Data inconsistency between watch and iPhone readings
App instability and freezes (especially in analytics)
Free version limitations: realtime data not available to free users
Monetization concerns: paywall and perceived high cost
Occasional notification issues or misleading/upbeat-normal alerts

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User Reviews

Recent rating average: 4.70

All time rating average: 4.70

Upgrade to see all 44 reviews

9% (4)

Date	Author	Comment
2025-12-17	br*****	Recommend
Recommend
2025-12-12	🐻*****	It’s good I just wish it showed us free users realtime stress levels
It’s good I just wish it showed us free users realtime stress levels
2025-11-28	bl*****	User friendly
User friendly
2025-07-06	al*****	Love and use all apps daily.
Love and use all apps daily.
2025-05-24	Sw*****	You know what stresses me out? Having these notifications pop up telling me everything’s normal. Why? Why tell me when everything’s normal? Tell me when I’m either relaxed or stressed. I do not what to hear anything else. Ever. Moreover, the app between the Watch and phone started telling me two completely different things. Not worth paying for if the free version doesn’t work right.
You know what stresses me out? Having these notifications pop up telling me everything’s normal. Why? Why tell me when everything’s normal? Tell me when I’m either relaxed or stressed. I do not what to hear anything else. Ever. Moreover, the app between the Watch and phone started telling me two completely different things. Not worth paying for if the free version doesn’t work right.
2025-02-24	Je*****	This app is the only app that has an alarm when your stress level peaks!
This app is the only app that has an alarm when your stress level peaks!
2025-02-16	Ja*****	This app is simple, easy, and just works well. The free version is good and not super pushy with the upgrade offers. But most importantly, This app does well what it says it is for: it helps me monitor my HRV stress levels by tracking my Heart Rate Variability (HRV) and notifying me when it is too low (aka I’m in a high stress moment). Who knew HRV was such a good indicator of how stressed your mind and body are? (I didn’t 😊) So the app is helping me reduce my stress levels by pointing out when I have put myself into a stressful situation and need to make adjustments. Very valuable insights! I’m trying to be more healthy, not just physically but also mentally, and this app is helping me with that To me that is easily worth more than the ~$33/year that it costs! ☺️
This app is simple, easy, and just works well. The free version is good and not super pushy with the upgrade offers. But most importantly, This app does well what it says it is for: it helps me monitor my HRV stress levels by tracking my Heart Rate Variability (HRV) and notifying me when it is too low (aka I’m in a high stress moment). Who knew HRV was such a good indicator of how stressed your mind and body are? (I didn’t 😊) So the app is helping me reduce my stress levels by pointing out when I have put myself into a stressful situation and need to make adjustments. Very valuable insights! I’m trying to be more healthy, not just physically but also mentally, and this app is helping me with that To me that is easily worth more than the ~$33/year that it costs! ☺️
2025-01-12	Sh*****	This app is revolutionary in its class
This app is revolutionary in its class
2024-10-13	Sc*****	This app has been a great assistant in reminding me to be mindful of my emotional state throughout the day. I am able to adjust my stress by being aware of it. It took me a little while to figure out how it really worked and after initially being skeptical I was able to note that the reminders actually coincided with my stress related activities and emotional state.
This app has been a great assistant in reminding me to be mindful of my emotional state throughout the day. I am able to adjust my stress by being aware of it. It took me a little while to figure out how it really worked and after initially being skeptical I was able to note that the reminders actually coincided with my stress related activities and emotional state.
2024-10-03	Ra*****	I love this app i use it everyday. But the only thing is I cant make a widget and I dont like that.
I love this app i use it everyday. But the only thing is I cant make a widget and I dont like that.